Table 1.
Descriptive statistics of the study variables: Positive and negative affect reported before and after the interactions
| Variable | 5HTTLPR | |||
|---|---|---|---|---|
| S | L/L | |||
| M | SD | M | SD | |
| Husbands | n = 58 | n = 18 | ||
| PA_pre | 3.36 | 0.87 | 3.36 | 0.83 |
| NDA_pre | 1.32 | 0.56 | 1.38 | 0.59 |
| NSA_pre | 1.57 | 0.78 | 1.71 | 0.93 |
| PA_post | 3.45 | 0.96 | 3.27 | 0.90 |
| NDA_post | 1.34 | 0.59 | 1.41 | 0.64 |
| NSA_post | 1.42 | 0.66 | 1.60 | 0.81 |
|
| ||||
| Wives | n = 54 | n = 20 | ||
| PA_pre | 3.38 | 0.89 | 3.12 | 0.92 |
| NDA_pre | 1.29 | 0.49 | 1.40 | 0.61 |
| NSA_pre | 1.50 | 0.71 | 1.56 | 0.84 |
| PA_post | 3.46 | 0.97 | 3.18 | 1.03 |
| NDA_post | 1.33 | 0.60 | 1.28 | 0.51 |
| NSA_post | 1.31 | 0.56 | 1.33 | 0.59 |
Note. PA = positive affect, NDA = negative dominant affect, NSA = negative submissive affect. S = short allele carriers, L/L = long allele homozygotes. Coefficients reflect mean scores across the three laboratory sessions. No significant differences existed in spouses’ affect ratings between genotypes or across lab sessions, no systematic trends in affect ratings existed across time, and genotypes were not associated with individuals’ trends across the laboratory sessions.